Valve



Fa e Ma 5, 92.

rnomas Bowman, or noa'rn vaivcouvnn, Barrisi-i Cunningham ff) -vALvE.---

To all wlwmitmay concern: v,

Beit known that. I, THOMAS Bownnn, a subject-of the King of Great Britain, and a resident of the city of North Vancouver, in the Province of British Columbia, Canada,

have invented certain new and useful Imrovements in Valves,0f which the follow- 1n .isa specification. t

y invention relates to improvements in valves, with x more particular reference to valves of the ball or disc type, and the ob-.

ject of my invention is to devise a valve of this character in which provision'is imade for the equal and cons stentexpansion and contraction of the valve seat when subjected; tovheating or cooling aswhen it is openedvor.

closedto admit steam: or shut it ofl? therefrom, bility equal expansion and contraction out the valve seat and chest and ensuring greater efiiciency and longer life of the valve. I

I attain this object-by illustrated inthe accompanying drawings in which i Fi 1 is a view, in part section, of a valve in w ich my invention is embodied. I

Fig. 2 is a detail view, in side elevation, of the valve seat ring. e k y Fig. 3 is a plan view of Fig. 2.

Fig. isafragmentary sectional view of the valve chest partition.

Fig.5 is a fragmentary sectional view of the invention assembled the mitered seat beini upmost.

ig. 6 is a view similar to Fig. 5 the valve seat ring being reversed.

Fig. 7 is an outside view of Fig. 5.

Fig. 8 is a plan view of Fig. 7.

Fig. 9 shows an alternative construction of the ring.

Similar figures of reference indicate similar parts throughout the several views.

1 indicates a valve chest, which, for the urpose of illustration, is shown as of the globe ball valve type, altho the invention may be embodied in any other analogous construction, having the usual partition 2 dividin the valve chamber into the inlet and out et chambers 3 and 4 communicating with each other through the opening 5, which chambers are provided with the usual threaded orifices 6 and 7 res ectively to which inlet and outlet pipes 610i; shown) ma be connected. 8 indicates a cover which is diatachably secured to the valve chest body Application nice February 4, 1925. Serial ,No. 0,794. i I f thus reducing to a minimum the possi of distortion of the seat through unthe construction "W -$TeT $j PATENT emu-119 and is provided with the spindlepasses through the stuffing box 10 andw-is: titted on itsouter end with an operating handle or wheel 11, while its lower end carries the ball valve 12, as indicated in F ig. 1. Uptothis point the construction described is similar to that of such valves in present use. 1

According to the present invention, the partition 2 is provided on its upper face w th an u'pstanding portion 13 forming an integral ring concentric with the openingfi, whichring is spaced throughout its circumference clear of any part of the valve chest body and isthreaded exteriorly as at 14. Seated on the upper end of the ring 13 isa valve seat ring 15 the bore of which is of the same diameter as that ofthe ring 13 and opening 5, while intermediate its height it is reduced exteriorly in diameter so that a flange 16 is provided the thickness of which is about half-the height of the ring 15 while its outside diameter is not greater. than the outside diameter of the ring 13, and thering 15is removably heldin place. by an inte- 'ring 15, either on-the backof its-flange 16 or on the 1outer face of the: flange, asthe case may be, and shown moreparticularly in Figs. '5 and 6. The end of the bore of the ring 15 opposite to the flanged end is mitred as at 19 to form a valve seat 20 co-operating with the ball valve 12, as indicated in Figs. 1 and 5, while the outer end edge is formed perfectly smooth so that it may form a seat 20 for a disc valve, since the end projects through the collar, as shown in Figs. 5 and 7, should it be desired to substitute a disc valve for the ball valve shown.

The opposite end of the bore of the ring 15 is also mitred to form a valve seat 21 also adapted to co-operate-with the ball valve,

when the ring 1s turned upside down, as

chest b0 y where these are integral and thus ensuring greater efficiency and longer life of the valve.

What I claim as my invention is 1. The combination with a valve chest having an apertured partition dividing the valve chamber into communicating inlet and outlet chambers, of an upstanding ring integral with the said partition concentric with the partition aperture and free from contact with the surrounding chest body, a valve seat ring seated on the upper end of said upstanding ring, and means for detachably uniting the valve seat ring to the upstanding one.

2. The combination with a valve chest having an apertured partition dividing the valve chamber into communicating inlet and outlet chambers, of an upstanding ring integral with the said partition concentric with the partition aperture and free from contact with the surrounding chest body, a valve seat ring seated on the upper end of said upstanding ring having its opposite end edges formed as mitred and disc valve seats respectively whereby the disc seat may be l substituted for the mitred one on reversing the ring, and means for detachably uniting the valve seat ring, to the upstanding one msepeo with either the mitred seat or the disc seat upmost.

3. The combination with a valve chest having an apertured partition dividing the valve chamber into communicating inlet and outlet chambers, of an upstanding ring inte gral with the said partition and concentric with the aperture thereof, said ring being free from contact with the surrounding chest body and exteriorly threaded, a valve seat ring seated on the upper end of said upstanding ring, and a collar threaded on to the upstanding ring securing the said valve seat ring thereto.

4. The combination with a valve chest having an apertured partition dividing the valve chamber into communicating inlet and outlet chambers, of an upstanding ring integral with the said partition and concentric with the aperture thereof, said ring being free from contact with the surrounding chest body and exteriorly threaded, a valve seat ring seated on the upper-end of said upstanding ring having one end edge formed as a mitred valve seat and reduced exteriorly in diameter intermediate its height to provide a flange at its opposite end the outer face of which forms a disc valve seat adapted to be substituted for the mitred one on reversing the ring, and a collar threaded on to the upstanding ring flanged inwardly at its outer end to bear respectively on the back of said flange or its outer face and detachably unite the valve seat ring to the upstanding one with either the mitred seat or the disc seat uppermost respectively.

Dated at Vancouver, B. C. this 30th day of January, 1925'.

THOMAS BOWLER. 

